SPA PR900W review - a great super cheap PCP gun

Hi everyone,
Does anyone have experience with fitting a Lane regulator on this mrod/SPA airgun? It could be a great solution to smooth the power curve and improve performance. Even on a $200 airgun, it might not be a waste of money. Any thoughts?

Pope,

With that kind of a fpe/velocity spread you might want to measure the inside diameter of the airtube and see if there is a regulator out there that could flatten that curve out for you.

My Airmax Varmint .177) from Mrodair arrived over Thanksgiving and must say it delivers much more one can expect for a gun in such price range ($199 shipped).
I had good groups at ~14 yds with the cheap Crosman pointed 7.4gr! Still TBD at longer ranges.
I see it as a tinkerer's gun, and being relatively new to PCPs I thought I can edge the risk of messing up with more expensive ones.
Over the weekend I removed the rear sight, installed a 3-9x40 AOL scope and a TKO suppressor. Significant improvements overall. My Lane Mk8 lancet is on the way, set at 2300psi.
As soon as I learn how to post pictures, I will upload a few.
The only gripe I have so far is with Mrodair non-existent customer service.

How much sound suppressed from the TKO? I ordered mine for the MrodAir Varmint last week but have not gotten any notification of shipment yet. 

I used an iPhone app to measure the dB, so absolute values may not reflect real loudness (I was more interested in the relative values before and after). Loudness went down about 15% with the TKO installed to the point that the impact on the target was louder than the report itself. Definitely would recommend it. Make sure you loosen both screws on the moderator before fitting it. Mine went up very snuggly, and with no impact on accuracy/POI.
Also, you won't get any shipment notification. It will magically appear in your mailbox one day

Hi, in the U.K. We only get the lower powered air transfer port, anyone know where I could order the bigger transfer port...? Thanks

"TL100"My Airmax Varmint .177) from Mrodair arrived over Thanksgiving and must say it delivers much more one can expect for a gun in such price range ($199 shipped).
I had good groups at ~14 yds with the cheap Crosman pointed 7.4gr! Still TBD at longer ranges.
I see it as a tinkerer's gun, and being relatively new to PCPs I thought I can edge the risk of messing up with more expensive ones.
Over the weekend I removed the rear sight, installed a 3-9x40 AOL scope and a TKO suppressor. Significant improvements overall. My Lane Mk8 lancet is on the way, set at 2300psi.
As soon as I learn how to post pictures, I will upload a few.
The only gripe I have so far is with Mrodair non-existent customer service.

MK8 Lane is pressure regulator suitable for PR900W ?
I can not find out installation video.

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Hi every one. New to the air gun world and to forums. I have a question? I have been looking at this pcp for some time, Would this be a good start for someone who wants to do field targets and bench rest. If not what would a good pcp close in price range. Thank you for your time and much needed help.

"Danny91"Hi, in the U.K. We only get the lower powered air transfer port, anyone know where I could order the bigger transfer port...? Thanks

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You can machine one with a slightly bigger transfer port or you can drill it open, I think there is a post here with the measurements. It would be better if you machine more than one and work from there and you can keep the original, on the machined port start at enlarging 1mm and test and work from there till you get the speed desired, just don't go too large. Another suggestion while you are working on it and have the rifle disassembled, change all the o'rings, they are prone to fail as the Chinese put low grade o'rings on it, the first ones to go is on the barrel. Also do not mount your scope on the barrel band rail, there is a difference in height of 1.5mm higher than the rail on the receiver(I ran out of scope adjustments before I found that out).

Hi P.W. I am very happy with this rifle in .177, as much as I'm disappointed with the after-sale support (no replies to phone calls and emails). I was able to get good groupings from ~14 yds, and sub-inch at 25. I can go 4 mags with Crosman pointed 7.4gr. before refilling the air tube. For the price, it is a bargain (or a bet, in case you'll ever need support).
Having said that, I also pre-ordered the Umarex Gauntlet. For a $300 airgun, it is expected to come with a fixed, built-in regulator and enough air to shoot ~60 pellets before recharging. I have a seen a couple of videos that pointed out this gun's accuracy, so I was sold. Between the PR900 and the Gauntlet you should be able to enjoy your first steps in this captivating world.
Hope this helps.

Yes this helps a lot. Thank you for your time and help. One more question what do you think about the Benjamin Maximus??? 

Great gun, indeed. What leaves me lukewarm is the fact it is a single-shot (i.e. no magazine). It can be very accurate, but I would like the option of speed reload if needed. Almost all mag-equipped rifles come with a single-shot tray, so you do not miss that option.
Also, it is not regulated, so accuracy is predicated upon the pressure interval you operate the gun at.

Cool thank you. The PR900W should i go .177 or .22 i would like to try both field target and bench rest. Most use ,177 some use .22 i just want to be accurate as possible, 
Thank you for the info. How long have you been air gunning?

If hunting is not your goal, go with the .177. You will not need the full impact power, and it will also be a tad more silent.
Lighter pellets will go faster, but too high velocity will destabilize the trajectory. How far do you thing you will be shooting at?
Heavier pellets will have more stability, but be slower, too.
Ultimately, it will be up to your own taste and experience. I have a limited collections of airguns in .177 and .22, which I use for different scopes (pun intended).
I'm relatively new to airguns, but have accumulated a tad of experience with centerfire ones back in the days.
Have fun and be safe. Airguns are not toys.

TL100 you have been a a lot of help. Thank you, The field targets go from 10 to 55 yards i think. i think i will get both ,177 and ,22 when able to. I live in Virginia where you from. You have helped me more than you will ever know thx. 

Good decision, I think.
Familiarize yourself well with the .177 and you'll be in a better position to decide in due time if you want the same in .22, or a different model. I will post some initial impressions after I receive my Gauntlet in .177 this May (hopefully), and in any case YouTube is an endless repository for all info on airguns.
I live in the San Francisco Bay.

I went and checked out the Gauntlet and all I can say is OMG. I think I am going to get me one of them, NO I know I am that thing is sweet. I can not get one until August. so I can save until then, But until then I think I will still get me one of these PR900W .I still like it and for $219 bucks still not bad, Plus with the Gauntlet the guy from Umarex stated this gun would be good for hunting and bench rest. You have to let me know how it works out when you get yours please. These guns are game changers for a lot of ppl. I know it is for me.

I just clipped .5" off the hammer spring. It lightened the trigger. Quieted the report and turned it into Avery accurate shooter at 14.5 ft lbs. very satisfied with the mod. Also no 30 yard change of impact until about shot 43. Could not be hapier.

This very same gun is now available from Diana (Stormrider) @$199.
Given my negative experience with support from MRodAir, it could make sense to pursue a different supplier. Check PyramidAir (it has a video review of the .22 cal) or AirgunDepot. The gun is on pre-order on both sites, with a 10/7 ETA (but I've been burned before still waiting for my Gauntlet...).
Almost a year with my .177 and couldn't be happier. I also have bought a lancet regulator, but still need to install it, as somehow I do not want to mess up with the current state and performance of the gun.
When I'll do, I will post some pics.

Thanks for the tip, Shawn. I am intrigued and guess I will just do the opposite of what I just posted and will tinker to install the regulator and clip the hammer spring at the same time.
Also, very intrigued about your shot count. With my .177 I can go fine with 4 mags before seeing a POI drop. I believe it should be worse with a .22. 
Guess my shot count will go down after installing the regulator, but hope to gain in even more consistency.
Again, appreciate your posting.